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5925-00-628-7778

Find complete technical information, availability, and procurement data for: 5925-00-628-7778

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5925-00-628-7778
Federal Supply Group
Electrical and Electronic Equipment Components
Federal Supply Classification
5925 Circuit Breakers
National Stock Number
5925-00-628-7778
Item Name Code
04558
Assigment Date
01/01/1963 (63 years ago)

An electromechanical device which releases the holding mechanism and permits the contacts of a circuit breaker to open. It is a replacement part of a circuit breaker. Does not include relays. See also thermal release, circuit breaker.

4.500 inches nominal overall width, 3.875 inches nominal overall height, 8.438 inches nominal overall length, 0.406 inches minimum and 0.531 inches maximum unthreaded mounting hole diameter, rectangular dimensional envelope body style

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Body Style
rectangular dimensional envelope
Overall Length
8.438 inches nominal
Overall Height
3.875 inches nominal
Overall Width
4.500 inches nominal
Unthreaded Mounting Hole Diameter
0.406 inches minimum and 0.531 inches maximum
Pole Quantity
3
Mounting Facility Type And Quantity
6 unthreaded hole
Features Provided
adjustable trip release
Maximum Continuous Load Current Rating Per Pole
350.0 amperes ac and 350.0 amperes dc all locations
Operating Voltage Type And Rating Per Pole In Volts
500.0 ac and 250.0 dc all locations
Circuit Protection Type
overcurrent all locations
Trip Release Method
thermal-magnetic all locations
Trip Release Characteristic
instantaneous and time delay all locations
Ultimate Trip Rating Of Continuous Current Rating Per Pole In Percent
105.0 all locations
Adjustable Trip Setting Current Range Per Pole In Amps
+1380.0 to 2280.0 ac and +1600.0 to 2285.0 dc all locations
Trip Delay Time In Seconds Per Rated Continuous Current
25.000 nominal at 600 pct all locations
Trip Release Ambient Temp Rating
50.0 celsius nominal all locations
Frequency In Hertz
60.0 all locations
Terminal Type And Quantity
6 screw

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN Name Date
5925-00-628-7761 No Name Available 01/01/1988

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number Name
AQB-AT400 Circuit Breaker Tripper
ETN6734 Circuit Breaker Tripper
ETN6767 Circuit Breaker Tripper

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5925-00-628-7778?
The FSCG of the NSN 5925-00-628-7778 is 5925
Does the NSN 5925-00-628-7778 have a Schedule B code assigned?
Yes, the Schedule B code is 8538907020
Does NSN 5925-00-628-7778 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 5925-00-628-7778 contain precious materials?
Precious metal content is unknown
Does NSN 5925-00-628-7778 contain hazardous materials?
Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of fed std 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.
When the NSN 5925-00-628-7778 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963

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